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/*
* Copyright (C) 2009-2012 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* Author: David Zeuthen <davidz@redhat.com>
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdio.h>
#include <glib/gi18n.h>
#include <polkit/polkit.h>
#define POLKIT_AGENT_I_KNOW_API_IS_SUBJECT_TO_CHANGE
#include <polkitagent/polkitagent.h>
int
main (int argc, char *argv[])
{
gboolean opt_show_version = FALSE;
gboolean opt_fallback = FALSE;
gchar *opt_process = NULL;
gchar *opt_system_bus_name = NULL;
gint opt_notify_fd = -1;
GOptionEntry options[] =
{
{
"fallback", 0, 0, G_OPTION_ARG_NONE, &opt_fallback,
N_("Don't replace existing agent if any"), NULL
},
{
"notify-fd", 0, 0, G_OPTION_ARG_INT, &opt_notify_fd,
N_("Close FD when the agent is registered"), N_("FD")
},
{
"process", 'p', 0, G_OPTION_ARG_STRING, &opt_process,
N_("Register the agent for the specified process"),
N_("PID[,START_TIME]")
},
{
"system-bus-name", 's', 0, G_OPTION_ARG_STRING, &opt_system_bus_name,
N_("Register the agent owner of BUS_NAME"), N_("BUS_NAME")
},
{
"version", 0, 0, G_OPTION_ARG_NONE, &opt_show_version,
N_("Show version"), NULL
},
{ NULL, 0, 0, 0, NULL, NULL, NULL }
};
GOptionContext *context;
gchar *s;
PolkitAuthority *authority = NULL;
PolkitSubject *subject = NULL;
gpointer local_agent_handle = NULL;
PolkitAgentListener *listener = NULL;
GVariant *listener_options = NULL;
GError *error;
GMainLoop *loop = NULL;
guint ret = 126;
GVariantBuilder builder;
g_type_init ();
error = NULL;
context = g_option_context_new ("");
s = g_strdup_printf (_("Report bugs to: %s\n"
"%s home page: <%s>"), PACKAGE_BUGREPORT,
PACKAGE_NAME, PACKAGE_URL);
g_option_context_set_description (context, s);
g_free (s);
g_option_context_add_main_entries (context, options, GETTEXT_PACKAGE);
if (!g_option_context_parse (context, &argc, &argv, &error))
{
g_printerr ("%s: %s\n", g_get_prgname (), error->message);
g_error_free (error);
goto out;
}
if (opt_show_version)
{
g_print ("pkttyagent version %s\n", PACKAGE_VERSION);
ret = 0;
goto out;
}
if (opt_process != NULL)
{
gint pid;
guint64 pid_start_time;
if (sscanf (opt_process, "%i,%" G_GUINT64_FORMAT, &pid, &pid_start_time)
== 2)
subject = polkit_unix_process_new_full (pid, pid_start_time);
else if (sscanf (opt_process, "%i", &pid) == 1)
subject = polkit_unix_process_new (pid);
else
{
g_printerr (_("%s: Invalid process specifier `%s'\n"),
g_get_prgname (), opt_process);
goto out;
}
}
if (opt_system_bus_name != NULL)
subject = polkit_system_bus_name_new (opt_system_bus_name);
/* Use parent process, if no subject has been specified */
if (subject == NULL)
{
pid_t pid_of_caller;
pid_of_caller = getppid ();
if (pid_of_caller == 1)
{
/* getppid() can return 1 if the parent died (meaning that we are reaped
* by /sbin/init); In that case we simpy bail.
*/
g_printerr ("Refusing to render service to dead parents.\n");
goto out;
}
subject = polkit_unix_process_new_for_owner (pid_of_caller,
0, /* 0 means "look up start-time in /proc" */
getuid ());
/* really double-check the invariants guaranteed by the PolkitUnixProcess class */
g_assert (subject != NULL);
g_assert (polkit_unix_process_get_pid (POLKIT_UNIX_PROCESS (subject)) == pid_of_caller);
g_assert (polkit_unix_process_get_uid (POLKIT_UNIX_PROCESS (subject)) >= 0);
g_assert (polkit_unix_process_get_start_time (POLKIT_UNIX_PROCESS (subject)) > 0);
}
authority = polkit_authority_get_sync (NULL /* GCancellable* */, &error);
if (authority == NULL)
{
g_printerr ("Error getting authority: %s (%s, %d)\n",
error->message, g_quark_to_string (error->domain), error->code);
g_error_free (error);
ret = 127;
goto out;
}
if (opt_fallback)
{
g_variant_builder_init (&builder, G_VARIANT_TYPE_VARDICT);
g_variant_builder_add (&builder, "{sv}", "fallback", g_variant_new_boolean (TRUE));
listener_options = g_variant_builder_end (&builder);
}
error = NULL;
/* this will fail if we can't find a controlling terminal */
listener = polkit_agent_text_listener_new (NULL, &error);
if (listener == NULL)
{
g_printerr ("Error creating textual authentication agent: %s (%s, %d)\n",
error->message, g_quark_to_string (error->domain), error->code);
g_error_free (error);
ret = 127;
goto out;
}
local_agent_handle = polkit_agent_listener_register_with_options (listener,
POLKIT_AGENT_REGISTER_FLAGS_RUN_IN_THREAD,
subject,
NULL, /* object_path */
listener_options,
NULL, /* GCancellable */
&error);
listener_options = NULL; /* consumed */
g_object_unref (listener);
if (local_agent_handle == NULL)
{
g_printerr ("Error registering authentication agent: %s (%s, %d)\n",
error->message, g_quark_to_string (error->domain), error->code);
g_error_free (error);
goto out;
}
if (opt_notify_fd != -1)
{
if (close (opt_notify_fd) != 0)
{
g_printerr ("Error closing notify-fd %d: %m\n", opt_notify_fd);
goto out;
}
}
loop = g_main_loop_new (NULL, FALSE);
g_main_loop_run (loop);
out:
if (loop != NULL)
g_main_loop_unref (loop);
if (local_agent_handle != NULL)
polkit_agent_listener_unregister (local_agent_handle);
if (listener_options != NULL)
g_variant_unref (listener_options);
if (subject != NULL)
g_object_unref (subject);
if (authority != NULL)
g_object_unref (authority);
g_free (opt_process);
g_free (opt_system_bus_name);
g_option_context_free (context);
return ret;
}
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